Product Details
●The AD8641/AD8642/AD8643 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and rail-to-rail at the output enables designers to buffer CMOS DACs, ASICs, and other wide output swing devices in single-supply systems. The outputs remain stable with capacitive loads of more than 500 pF.
●The AD8641/AD8642/AD8643 are suitable for applications utilizing multichannel boards that require low power to manage heat. Other applications include photodiodes, ATE reference level drivers, battery management, and industrial controls.
●The AD8641/AD8642/AD8643 are fully specified over the extended industrial temperature range of –40°C to +125°C. The AD8641 is available in 5-lead SC70 and 8-lead SOIC lead-free packages. The AD8642 is available in 8-lead MSOP and 8-lead SOIC lead-free packages. The AD8643 is available in 14-lead SOIC and 16-lead, 3 mm × 3 mm, LFCSP lead-free packages.
●Applications
● Line-/battery-powered instruments
● Photodiode amplifiers
● Precision current sensing
● Medical instrumentation
● Industrial controls
● Precision filters
● Portable audio
● ATE
●### Features and Benefits
● Low Supply Current: 250 µA max
● Very Low Input Bias Current: 1 pA max
● Low Offset Voltage: 750 µV max
● Single-supply Operation: 5 V to 26 V
● Dual-supply Operation: ±2.5 V to ±13 V
● Rail-to-rail Output
● Unity Gain Stable
● No Phase Reversal
